[Tone]

Here's my JB story.....once upon a time, one of the seams on my radiator was badly corroded, and eventually the pressure blew it apart. I tried every 'quick fix' product I could find...and had at least 5 different leak stoppers running through my cooling system, and the leak persisted.

It was SO bad, that it would leak a gallon faster than I could pour it into the top.

After a couple days, I finally decided to fix the leak. I sanded away the rust/corrosion, and hammered shut the seam as best I could....then I JB welded the whole seam, from top to bottom. It's been running great with no leaks for about a thousand miles now.


So the question is...is there anything it can't do?

[JKrull66]

The only thing I have found is it will not hold up in impact situations. It is strong but for instance on a Dirt bike the clutch handle was broke in the middle, I pulled and released it several times. The first time I let it snap back it broke back in half. But I have used it in many applications that worked good...
John

[6704gto]

i used it on a gas tank that had a hole in it

[Ron Landis]

sux on holding dentures in place! lol Ron

[zbuickman]

using it for a head gasket in my tractor. The thing has some time on it now too. still has more power than when it was new. Higher CR and Quench. A guy that pulls tractors told me to do it. its pretty sweet even if I have to replace it every year or two. (havent had to yet) well worth it for the benifit(Noticable)

[ja67bird]

I used it to fill the extra holes in the heads, the choke tube holes & the EGR holes when I built the 400 for my 68. It worked great!

[AllRise]

I wonder if you could fill your exhaust crossover with it? And possibly use it for building up the ports on the intakes, and intake runners? Is is solvent and heat resistant?

[Tone]

I think it's got a decent resistance to heat. You'll have to verify that though.

[AROWHED]

JB Weld is good to 600F...I jsut patched up an aluminum radiator with it this week.

[69 T/A]

Fixed my condenser with it, I was just going to replace it but couldn't remove the fittings without damaging the hoses. Been working for 3 months now, ice cold A/C!

[zbuickman]

Originally Posted by Tone

I think it's got a decent resistance to heat. You'll have to verify that though.

Originally Posted by AROWHED

JB Weld is good to 600F...I jsut patched up an aluminum radiator with it this week.

Originally Posted by zbuickman

using it for a head gasket in my tractor. The thing has some time on it now too. still has more power than when it was new. Higher CR and Quench. A guy that pulls tractors told me to do it. its pretty sweet even if I have to replace it every year or two. (havent had to yet) well worth it for the benifit(Noticable)

it has resisted at least double that in this case. I think it helps being sandwiched and thin

[hectore3]

Used it on an oil pan. It stayed there for 240,000 plus miles without a leak!

[b-man]

I used it on some aluminum air-cooled VW heads, this was about 30 years ago.

I was porting them and raising the roofs of the intake ports, ended up with a few pinholes.

I put a little dab of JB Weld on the pinholes, and it held up fine for a year or so until I stopped running those heads on my engine. The JB was hanging in there no problem, these heads regularly saw temps of 350+ degrees.

They were on an 1835cc 13-second street-racer special. I beat the crap out of it on a regular basis like any normal 18 year-old would.

Good stuff that JB Weld.

[Tone]

It sure is.....I love any oppurtunity I get to use it. I'm kinda bummed that nothing's broke, lol. I keep thinking about how I should just replace that old worn out radiator I repaired with JB Weld....but it's still holding strong.

[stimpy]

used the stuff to patch a burn channel when a headgasket blew on a old ford farm truck (351 w) , just mixed it up and smeared it in the groove and then trimmed off the remainder in the bores with a knife ans slapped the head gasket on , well its been 7 years since we did that and the motor is still running great operating a irrigation pump but the body died , I have used it when porting pontiac heads it works great on the intake but burns off on the exaust ,for crossovers we use a furnace cement they sell it at home depot you have to put it in a little at a time so it will dry

[400 4spd.]

Anyone re-attached broken studs to pot metal parts? I have chrome tail panel that two studs popped off of.

[stimpy]

yep it will work for that too

[b-man]

Originally Posted by 400 4spd.

Anyone re-attached broken studs to pot metal parts? I have chrome tail panel that two studs popped off of.

I would say that this is one thing that the JB won't handle.

Sure, you can re-attach them, but any twisting or tension from snugging it down is going to make the studs pop right off.

The way to go would be to weld/attach some steel studs to a thin metal plate, as large a plate as you can get away with. Then use the JB to bond the plate with the studs to the backside of the trim piece, after roughing up the surface on both parts.

[form74]

Last winter we used it to reattached the gas filler neck on a snowmobile, it held up for the weekend with a slight leak, but it is plastic. The other day I was in the garage showing somebody the sled and was telling them about it and when I grabbed it it broke off.

[performerrpm]

i used it for my timing cover that had a little bit of corroding around the water passage surface just dug out the bad parts filled with jb and sanded own to match the re3st of the cover and it worke good, but most of the jb was in the gasket surface i dnt thin it will be under tremendous pressure